LU500292B1 - A New Floor Heating System And a Heating Method Thereof - Google Patents

A New Floor Heating System And a Heating Method Thereof Download PDF

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Publication number
LU500292B1
LU500292B1 LU500292A LU500292A LU500292B1 LU 500292 B1 LU500292 B1 LU 500292B1 LU 500292 A LU500292 A LU 500292A LU 500292 A LU500292 A LU 500292A LU 500292 B1 LU500292 B1 LU 500292B1
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LU
Luxembourg
Prior art keywords
floor heating
heat
heat pump
compressor
kalina
Prior art date
Application number
LU500292A
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French (fr)
Inventor
Xiaojuan Guo
Bing Hu
Original Assignee
Univ Dongguan Technology
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Publication of LU500292B1 publication Critical patent/LU500292B1/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D15/00—Other domestic- or space-heating systems
    • F24D15/02—Other domestic- or space-heating systems consisting of self-contained heating units, e.g. storage heaters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B27/00—Machines, plants or systems, using particular sources of energy
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D15/00—Other domestic- or space-heating systems
    • F24D15/04—Other domestic- or space-heating systems using heat pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D18/00—Small-scale combined heat and power [CHP] generation systems specially adapted for domestic heating, space heating or domestic hot-water supply
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D3/00—Hot-water central heating systems
    • F24D3/18—Hot-water central heating systems using heat pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S20/00—Solar heat collectors specially adapted for particular uses or environments
    • F24S20/40—Solar heat collectors combined with other heat sources, e.g. using electrical heating or heat from ambient air
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B35/00—Boiler-absorbers, i.e. boilers usable for absorption or adsorption
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B9/00—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point
    • F25B9/002—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point characterised by the refrigerant
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
    • F01K27/00—Plants for converting heat or fluid energy into mechanical energy, not otherwise provided for
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D2200/00—Heat sources or energy sources
    • F24D2200/14—Solar energy
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H2240/00—Fluid heaters having electrical generators
    • F24H2240/12—Fluid heaters having electrical generators with thermodynamic cycle for converting thermal energy to mechanical power to produce electrical energy
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2327/00—Refrigeration system using an engine for driving a compressor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2339/00—Details of evaporators; Details of condensers
    • F25B2339/04—Details of condensers
    • F25B2339/047—Water-cooled condensers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B25/00—Machines, plants or systems, using a combination of modes of operation covered by two or more of the groups F25B1/00 - F25B23/00
    • F25B25/005—Machines, plants or systems, using a combination of modes of operation covered by two or more of the groups F25B1/00 - F25B23/00 using primary and secondary systems
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B10/00—Integration of renewable energy sources in buildings
    • Y02B10/20—Solar thermal
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/12—Hot water central heating systems using heat pumps
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/52—Heat recovery pumps, i.e. heat pump based systems or units able to transfer the thermal energy from one area of the premises or part of the facilities to a different one, improving the overall efficiency
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/40—Solar thermal energy, e.g. solar towers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E20/00—Combustion technologies with mitigation potential
    • Y02E20/14—Combined heat and power generation [CHP]

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Steam Or Hot-Water Central Heating Systems (AREA)
  • Heat-Pump Type And Storage Water Heaters (AREA)

Abstract

The invention relates to the fields of solar thermal utilization, power circulation and HVAC (Heating Ventilation Air Conditioning) utilization, in particular to a new floor heating system and a heating method thereof, which comprises a solar heat collecting system, a Kalina circulation system, a heat pump circulation system and a floor heating pipe used for heating the floor. The solar energy collection system, Kalina circulation system and heat pump circulation system are connected in sequence, and the Kalina circulation system and heat pump circulation system are connected with the floor heating pipe. The invention uses the solar energy collecting system to drive the Kalina Cycle to generate mechanical energy, and then uses the mechanical energy generated by the Kalina Cycle to drive the heat pump system to generate hot water for floor heating, so as to avoid the disadvantage of low efficiency in directly using the hot water generated by the solar energy collecting system for floor heating. At the same time, heat pump technology can improve energy efficiency and save energy. That is, the solar heat collection system, Kalina circulation system and heat pump circulation system are integrated for floor heating, which greatly improves the utilization efficiency of solar energy.

Description

SPECIFICATION A New Floor Heating System And a Heating Method Thereof 0900698 Technical Field The invention relates to the fields of solar thermal utilization, power circulation and HVAC utilization, in particular to a novel floor heating system and a heating method thereof. Technical Background A number of statistics show that the energy consumption of the building accounts for about 30% of the total energy consumption in the world today, which is a major form of energy consumption, and the energy consumption for HVAC accounts for about 85% of the building energy consumption. With the aggravation of energy crisis and the increasingly prominent environmental problems, it has become the basic trend of the development of modern building technology to minimize energy consumption, reduce the emission of harmful substances, and make full use of renewable energy for heating and cooling. With the continuous improvement of people's living standards, people put forward better requirements for the comfort of building heating mode. Floor heating not only has the advantages of energy saving, comfort and health, but also can make full use of all kinds of low-grade energy.
Solar energy is a huge and inexhaustible source of energy, which is the most abundant resource available to mankind. Compared with other energy sources, 1
SPECIFICATION solar energy can be said to be inexhaustible. With the continuous development of 7900898 solar energy industry and the increasing market demand, the field of generating medium and low temperature hot water using solar heat collection system 1s expanding continuously. The solar energy collection system is a typical direction for the solar industry to expand its application because of its high market demand and feasible technology.
However, the use of hot water generated by solar heat collection system directly for floor heating has the disadvantage of low efficiency. The Kalina circulation system uses ammonia water as the circulating working medium. Because of its low boiling point and small latent heat, it can effectively reduce the working intensity of solar energy collector and circulating fluidized bed biomass gasifier. At the same time, heat pump technology can improve energy efficiency and save energy.
Summary of the Invention The invention provides a new floor heating system and a heating method for overcoming the deficiencies in the prior art.
In order to solve the above technical problems, the technical solution adopted by the utility model is as follows: A new floor heating system is provided, comprising solar energy collection system, Kalina circulation system, heat pump circulating system, floor heating 2
SPECIFICATION pipe for floor heating, which comprises solar energy collection system, Kalina 7900898 circulation system and heat pump circulating system connected in a sequential manner. The Kalina circulating system and heat pump circulating system are connected with floor heating pipes.
The invention uses the solar energy collection system to drive the Kalina cycle to produce mechanical energy, and then uses the mechanical energy generated by the Kalina cycle to drive the heat pump system to produce hot water for floor heating. The Kalina cycle system uses ammonia as the circulating working medium because of its low boiling point and small latent heat. Thus, the working intensity of solar collector and circulating fluidized bed biomass gasifier can be effectively reduced, and the low efficiency of floor heating can be avoided by using hot water generated by solar heat collection system directly. At the same time, heat pump technology can improve energy efficiency and save energy. In other words, the solar collector system is integrated with Kalina Cycle System and heat pump cycle system for floor heating, which greatly improves the utilization efficiency of solar energy, and has simple structure and convenient control.
The heat storage tank is connected with Kalina circulation system and floor heating coil in turn, which realizes the cascade utilization of energy and improves the utilization efficiency of energy by using regenerative circulation. The device 3
SPECIFICATION has the advantages of simple structure, remarkable energy saving effect and 7900898 convenient control.
Preferably, the solar energy heat collection system comprises a solar collector and a heat storage tank for providing heat. The solar collector and the heat storage tank are communicated through a pipe and a switch structure 1s provided to control whether the solar collector and the heat storage tank are connected.
Preferably, the Kalina circulation system comprises a generator, an expander, an absorber and a heat exchanger. The generator, an expander and an absorber are connected ina sequential one-way manner. The generator and the heat exchanger are bidirectional connected, the absorber and the heat exchanger are bidirectional connected, the output end of the heat storage tank is connected with the input end of the generator, and the output end of the generator is connected with the floor heating pipe.
Preferably, a solution pump is connected between the output end of the absorber and the input end of the heat exchanger.
Preferably, the heat pump circulation system comprises a compressor, a compressor side condenser, a throttle valve, an evaporator and a compressor which are connected in a one-way manner to form a cycle; The expander 1s connected with the compressor; And the side condenser of the compressor 1s 4
SPECIFICATION bidirectional connected with the floor heating pipe. 0900698 Preferably, the absorber and the evaporator are bidirectional connected.
Preferably, a cooling tower is connected between the output end of the evaporator and the input end of the absorber.
Preferably, a water collector is connected between the output end of the compressor side condenser and the floor heating pipe, and a water distributor is connected between the input end of the compressor side condenser and the floor heating pipe.
Preferably, the expander and the compressor are coaxial connection structure.
Preferably, the water distributor is also connected with a heat storage water tank.
Preferably, a boiler for auxiliary heating is also included, which is connected with a heat storage water tank.
The invention also provides a heating method for applying the new floor heating system, and the specific steps are as follows: (1) The hot water generated by the solar collector is stored in the heat storage tank; (2) The hot water in the heat storage tank enters the Kalina circulation system for hot water circulation heating; At the same time, the heat pump
SPECIFICATION circulation system with Kalina circulation system also carries out hot water 0900698 circulation heating.
Preferably, in step (2), the specific steps of heating by Kalina circulation system are as follows: (a) In the hot water generator of the regenerative water tank, the low boiling point characteristic of ammonia is utilized to turn ammonia into high pressure steam from the heat provided by the regenerative water tank; (b) The high-pressure steam pushes the expander to do work. The steam from the expander turns into low-pressure steam, and then enters the absorber to turn into low-pressure liquid. After being lifted by the solution pump and preheated by the heat exchanger, it enters the generator to complete a cycle; (c) The hot water in the heat storage tank from the generator flows into the floor heating coil for heating.
Preferably, in step (2), the specific heating steps of the heat pump circulation system are as follows: (1) The power output from the expander drives the compressor, which compresses the low-temperature and low-pressure organic working medium steam into high-temperature and high-pressure steam; (ii) High temperature and high pressure steam enters the side condenser of the compressor and is condensed into high pressure liquid. High pressure organic 6
SPECIFICATION working fluid is turned into low pressure liquid through the throttle valve. 7900898 (iii) The low-pressure liquid enters the evaporator to evaporate and refrigerate into low-pressure steam, and finally enters the compressor to complete the heat pump cycle. The side condenser of the compressor is connected with the floor heating coil, so that the hot water generated by the heat pump system is heated Compared with prior art, the beneficial effects are: The invention uses the solar energy collection system to drive the Kalina cycle to produce mechanical energy, and then uses the mechanical energy generated by the Kalina cycle to drive the heat pump system to produce hot water for floor heating. The Kalina cycle system uses ammonia as the circulating working medium because of its low boiling point and small latent heat. Thus, the working intensity of solar collector and circulating fluidized bed biomass gasifier can be effectively reduced, and the low efficiency of floor heating can be avoided by using hot water generated by solar heat collection system directly. At the same time, heat pump technology can improve energy efficiency and save energy. In other words, the solar collector system is integrated with Kalina Cycle System and heat pump cycle system for floor heating, which greatly improves the utilization efficiency of solar energy, and has simple structure and convenient control.
7
SPECIFICATION
In addition, the expander and compressor are coaxial connection structure, which 7900898 reduces the link of mechanical energy into electrical energy, and effectively improves the conversion efficiency of mechanical energy.
R245fa is used as the working fluid in the heat pump system, which has the advantages of zero ozone destruction potential, low temperature chamber effect potential, low toxicity, nonflammability and good thermal stability.
The heat storage tank is successively connected with the Kalina circulation system generator and the floor heating coil, which realizes the cascade utilization of energy.
By connecting the absorber with the evaporator, the heat in the absorber is recovered by the heat pump system, and the energy utilization efficiency is improved.
Descriptions of the Drawings
Fig. 1 is a schematic diagram of a new floor heating system of the invention.
Detailed Description of the Preferred Embodiments
The attached drawings are for illustrative purposes only and shall not be construed as a limitation of this patent; In order to better illustrate this embodiment, some parts in the attached drawings may be omitted, enlarged or reduced and do not represent the size of the actual product; For those skilled in this field, it is understandable that some of the publicly known structures and their descriptions may be omitted from the attached drawings.
The location relationships described in the attached drawings are for illustrative purposes only
8
SPECIFICATION and shall not be construed as restrictions on this patent. 7900898 The same or similar labels in the attached drawings of the embodiments of the invention correspond to the same or similar parts; In the description of the invention, it should be understood that if the orientation or position relationship indicated by the terms "up", "down", "left", "right", "long" and "short" is based on the orientation or position relationship shown in the drawings, it is only for the convenience of describing the invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation Therefore, the terms describing the positional relationship in the drawings are only for illustrative purposes and cannot be understood as a limitation of the present patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific situation.
The technical scheme of the present invention is further described in detail through specific embodiments and in combination with the drawings Embodiments Fig. 1 is an embodiment of a new floor heating system and its heating method, comprising solar energy heat collecting system 1, Kalina circulation system 2, heat pump circulation system 3, floor heating pipe 4 for floor heating, including solar energy heat collecting system 1, Kalina circulation system 2, heat pump circulation system 3, serial connection. Kalina circulation system 2, heat 9
SPECIFICATION pump circulation system 3 are connected with floor heating pipe 4. 7900898 The solar heat collecting system 1 comprises a solar collector 11 and a heat storage tank 12 for providing heat. The solar collector 11 and the heat storage tank 12 are communicated through a pipe and a switch structure 13 is provided for controlling whether the solar collector 11 and the heat storage tank 12 are connected.
In addition, Kalina Cycle System 2 comprises generator 21, expander 22, absorber 23 and heat exchanger 25. Generator 21, expander 22 and absorber 23 are connected in one direction in sequence; The generator 21 and the heat exchanger 25 are bidirectional connected, the absorber 23 and the heat exchanger 25 are bidirectional connected, the output end of the heat storage tank 12 1s connected with the input end of the generator 21, and the output end of the generator 21 is connected with the floor heating pipe 4.
The solution pump 24 is connected between the output end of the absorber 23 and the input end of the heat exchanger 25, and the expander side throttle valve 26 1s connected between the input end of the absorber 23 and the output end of the heat exchanger 25.
In addition, the heat pump circulating system 3 includes compressor 31, compressor side condenser 32, throttle valve 33, evaporator 34 and compressor 31 connected in one-way in a sequential manner to form a cycle; Expander 22 is
SPECIFICATION connected with compressor 31; The compressor side condenser 32 is connected to 7900898 the floor heating pipe 4 in two directions.
The absorber 23 and the evaporator 34 are connected in two directions.
In addition, a cooling tower 5 is connected between the output end of the evaporator 34 and the input end of the absorber 23.
A water collector 6 is connected between the output end of the condenser 32 on the compressor side and the floor heating pipe 4, and a water distributor 7 1s connected between the input end of the condenser 32 on the compressor side and the floor heating pipe 4.
In addition, the expander 22 and the compressor 31 are coaxially connected.
The water distributor 7 is connected with the heat storage water tank 12, and a circulating water pump 9 is arranged between them.
In addition, the utility model also comprises a boiler 8 for auxiliary heating, which is connected with a heat storage water tank 12.
The invention also provides a heating method of a new floor heating system, and the specific steps are as follows: (1) The hot water generated by solar collector 11 is stored in the heat storage tank 12; (2) The hot water in the heat storage tank 12 enters Kalina circulating system 2 for hot water circulating heating; At the same time, the hot water circulating 11
SPECIFICATION heating is also carried out with the heat pump circulating system 3 of Kalina 7900898 circulation system 2.
In step (2), the specific steps of heating of Kalina Cycle System 2 are as follows: (a) In the hot water generator 211 of the regenerative water tank 12, the low boiling point characteristic of ammonia water is utilized, and the heat provided by the regenerative water tank 12 turns ammonia water into high pressure steam; (b) The high-pressure steam pushes expander 22 to do work, and the steam from expander 22 turns into low-pressure steam, then enters absorber 23 and turns into low-pressure liquid, which is lifted by solution pump 24 and preheated by heat exchanger 25 before entering generator 21 to complete a cycle; (c) The hot water in the heat storage tank 12 from the generator 21 flows into the floor heating coil for heating.
In addition, in step (2), the specific heating steps of the heat pump circulation system 3 are as follows: (1) The power output from expander 22 drives compressor 31, which compresses low-temperature and low-pressure organic working medium steam into high-temperature and high-pressure steam; (ii) The high temperature and high pressure steam enters the side condenser 32 of the compressor and is condensed into high pressure liquid. The high 12
SPECIFICATION pressure organic working liquid passes through the throttle valve 33 and becomes 7900898 low pressure liquid; (iii) The low-pressure liquid enters the evaporator 34 to evaporate and refrigerate into low-pressure steam, and finally enters the compressor 31 to complete the heat pump circulation. The condenser 32 on the side of the compressor is connected with the floor heating coil 4, so that the hot water generated by the heat pump system is heated.
The specific working principle is as follows: Open the switch structure (13), which is the circulating water valve of the solar collector. The hot water generated by the solar collector (11) is stored in the heat storage tank (12), which is equipped with a thermocouple. When the temperature of the heat storage tank (12) is below a certain value, open the circulating water valve (14) of the boiler and open the boiler (8) for auxiliary heating. When the solar radiation intensity is lower than a certain value, switch structure 13 is closed, and the hot water in the regenerative water tank 12 is completely provided by boiler 8. The hot water in the regenerative water tank 12 first enters the generator 21 of Kalina circulation system. In the generator 21, the heat provided by the regenerative water tank 12 turns the ammonia into high-pressure steam, which drives the expander 22 to do work. The steam coming out of the expander 22 becomes low-pressure steam, and then enters the absorber 13
SPECIFICATION 23 and becomes low-pressure liquid. After lifting the solution pump (24) and 7900898 preheating the heat exchanger (25), it enters the generator (21) to complete a cycle. The hot water from the heat storage tank (12) flowing out of the generator (21) flows into the floor heating coil to meet the heating needs of users. The heat pump compressor 31 compresses the low-temperature and low-pressure organic working medium steam into high-temperature and high-pressure steam by using the power output from the expander 22. In the condenser 32 on the compressor side, the high-pressure steam is condensed into high-pressure liquid. The high-pressure organic working medium liquid is throttled by the throttle valve 33 and becomes low-pressure liquid. In the evaporator 34, the evaporation refrigeration becomes low-pressure steam, and finally enters the compressor 31 to complete the heat pump cycle, The condenser 32 at the compressor side is connected with the floor heating coil 4 to provide the hot water generated by the heat pump system to the users. In order to improve the efficiency of energy utilization, the absorber 23 and the evaporator 25 are connected, and a cooling tower is set between the condenser and the evaporator on the expander side to adjust the heat balance on both sides, and the heat pump system is used to recover the heat in the absorber 23.
Obviously, the above-mentioned embodiments of the present invention are only examples to clearly illustrate the present invention, not to limit the embodiments of the present invention.For those skilled in the art, other changes or 14
SPECIFICATION changes in different forms can be made on the basis of the above description. 0900698 There 1s no need and cannot be an exhaustive list of all implementations here.
Any modification, equivalent replacement or improvement made within the spirit and principles of the invention shall be covered by the protection of the claim to the invention.

Claims (10)

  1. CLAIMS I. A new floor heating system is characterized in that it includes a solar 7900898 collector system (1), a Kalina Cycle System (2), a heat pump cycle system (3) and a floor heating pipe (4) for heating the floor. The solar collector system (1), the Kalina Cycle System (2) and the heat pump cycle system (3) are sequentially connected, and the Kalina Cycle System (2) and the heat pump cycle system (3) are connected The heat pump circulation system (3) is connected with the floor heating pipe (4).
  2. 2. According to claim 1, the method is characterized in that, the solar collector system (1) comprises a solar collector (11) for providing heat and a heat storage water tank (12), the solar collector (11) is communicated with the heat storage water tank (12) through pipes, and a switch structure (13) is provided for controlling whether the solar collector (11) is communicated with the heat storage water tank (12).
  3. 3. According to claim 2, the method is characterized in that, the Kalina circulation system (2) comprises a generator (21), an expander (22), an absorber (23) and a heat exchanger (25), and the generator (21), the expander (22) and the absorber (23) are sequentially unidirectionally connected; The generator (21) and the heat exchanger (25) are bidirectional connected, the absorber (23) and the heat exchanger (25) are bidirectional connected, the output end of the heat storage water tank (12) is connected with the input end of the generator (21), and the 1
    CLAIMS output end of the generator (21) is connected with the floor heating pipe (4); A 7900898 solution pump (24) is connected between the output end of the absorber (23) and the input end of the heat exchanger (25).
  4. 4. According to claim 3, the method is characterized in that, the heat pump circulation system (3) comprises a compressor (31), a compressor side condenser (32), a throttle valve (33), an evaporator (34) and a compressor (31) which are connected in one direction in order to form a cycle; The expander (22) is connected with the compressor (31); The compressor side condenser (32) is bidirectional connected with the floor heating pipe (4).
  5. 5. According to claim 4 or 5, the method is characterized in that, a cooling tower (5) is connected between the output end of the evaporator (34) and the input end of the absorber (23).
  6. 6. According to claim 4 or 5, the method is characterized in that, a water collector (6) is connected between the output end of the compressor side condenser (32) and the floor heating pipe (4), a water distributor (7) is connected between the input end of the compressor side condenser (32) and the floor heating pipe (4), and the water distributor (7) is connected with the heat storage tank (12).
  7. 7. According to claim 4 or 5, the method is characterized in that, the expander (22) and the compressor (31) are in a coaxial connection structure.
  8. 8. A heating method applying the new floor heating system of claim 4, which 2
    CLAIMS is characterized in that the specific steps are as follows: 7900898 (1) The hot water generated by the solar collector (11) is stored in the heat storage tank (12); (2) The hot water in the regenerative water tank (12) enters the Kalina circulation system (2) for hot water circulation heating; At the same time, hot water circulation is also carried out with the heat pump circulation system (3) of Kalina circulation system (2).
  9. 9. According to claim 8, the method is characterized in that, in Step (2), the specific steps for Kalina Circulation System (2) heating are as follows: (a) In the hot water generator (211) of the regenerative water tank (12), the low boiling point characteristic of ammonia water is utilized, and the heat provided by the regenerative water tank (12) turns ammonia water into high pressure steam; (b) The high-pressure steam pushes the expander (22) to do work, and the steam from the expander (22) turns into low-pressure steam, and then enters the absorber (23) to become low-pressure liquid, which is lifted by the solution pump (24) and preheated by the heat exchanger (25) before entering the generator (21) to complete a cycle; (c) The hot water in the heat storage water tank (12) from the generator (21) flows into the floor heating coil for heating.
    3
  10. 10. According to claim 8, the method is characterized in that, in step (2), the 7900898 specific steps of heating of heat pump circulating system (3) are as follows: (1) The power output from the expander (22) drives the compressor (31), which compresses the low-temperature and low-pressure organic working medium steam into high-temperature and high-pressure steam; (ii) High temperature and high pressure steam enters the side condenser of the compressor (32) and is condensed into high pressure liquid. The high pressure organic working fluid is turned into low pressure liquid through the throttle valve (33); (iii) The low-pressure liquid enters the evaporator (34) to evaporate and refrigerate into low-pressure steam, and finally enters the compressor (31) to complete the heat pump cycle. The condenser on the side of the compressor (32) and the floor heating coil (4) are connected to heat the hot water generated by the heat pump system.
    4
LU500292A 2020-10-13 2021-06-17 A New Floor Heating System And a Heating Method Thereof LU500292B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202011092272.0A CN112781094A (en) 2020-10-13 2020-10-13 Novel floor heating system and heating method thereof

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Publication Number Publication Date
LU500292B1 true LU500292B1 (en) 2021-12-17

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Family Applications (1)

Application Number Title Priority Date Filing Date
LU500292A LU500292B1 (en) 2020-10-13 2021-06-17 A New Floor Heating System And a Heating Method Thereof

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CN (1) CN112781094A (en)
LU (1) LU500292B1 (en)

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Effective date: 20211217